KNF UNF 1.300 EX User manual

UNF 1.300 EX
INSTALLATION INSTRUCTIONS
DIAPHRAGM PUMP
KNF Neuberger, Inc
2 Black Forest Rd
Trenton NJ 08691-1810
609-890-8600
www.knfusa.com
Ident# 337361/337364
Revision (06/23)
Before operating the pump and the accessories, please read the Installation Instructions and safety precau-
tions.

Table of contents Installation Instructions
DraftUNF1.300Ex Manual
2
Table of contents
Page
1 General ...................................................................................... 3
1.1 Information about the instructions 3
1.2 Warnings 3
1.3 Disclaimer 4
1.4 Manufacturer’s address 4
1.5 Supporting documents 4
2 Safety ........................................................................................ 5
2.1 Intended use 5
2.2 Reasonably foreseeable misuse 5
2.3 Responsibility of the user 5
2.4 Product-specific risks 5
3 Installation ................................................................................ 7
3.1 Installation location 7
3.2 Mechanical mounting 7
3.3 Connecting the fluid system 7
3.4 Electrical connection 8
4 Initial start-up ......................................................................... 10
5 Maintenance ........................................................................... 12
5.1 Cleaning 12
5.2 Preparing for dismantling 13
5.3 Dismantling the pump head 14
5.4 Assembling the pump head 15
6 Rectifying transfer problems ................................................ 16
7 Spare parts ............................................................................. 17
8 Returning the pump ............................................................... 17

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1 General
1.1 Information about the instructions
The Installation Instructions describe the requirements for installing
the product correctly and safely into the complete machine.
These Installation Instructions are a part of the product. The safety-
relevant information should be taken over for the documentation of
the complete machine.
With customer-specific project pumps (pump types which begin
with “PU” or “MPU”), there may be differences from the Installation
Instructions.
1.2 Warnings
Warnings in the Installation Instructions are marked by the hazard
symbol, the keywords, and the color. These features provide
information about the extent of the hazard.
DANGER
This indicates a dangerous situation that will directly cause death
or serious injury if not prevented.
WARNING
This indicates a dangerous situation that may cause death or
serious injury if not prevented.
CAUTION
This indicates a dangerous situation that may cause moderate or
slight injuries if not prevented.
NOTICE
This indicates a situation that may cause damage to property if
not prevented.
Table of Contents
Storage location
Project pumps

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1.3 Disclaimer
The manufacturer accepts no liability for damage or malfunctions
that are caused by non-compliance with the Installation Instruc-
tions.
The manufacturer accepts no liability for damage or malfunctions
that are caused by modifications to or conversions of the device or
by improper handling.
The manufacturer accepts no liability for damage or malfunctions
that are caused by using spare parts or accessories that are not
approved by the manufacturer.
1.4 Manufacturer’s address
KNF Neuberger, Inc.
2 Black Forest Rd.
Trenton, NJ 08691
Phone [phone]
Fax [phone]
www.knf.com
1.5 Supporting documents
The listed documents must also be observed. The valid versions
are available at www.knf.com/en/us/service/downloads.
 Data sheet
 3D model
The following must also be observed:
 Local T&Cs
 Sales documents and agreement between KNF and the cus-
tomer
 Drive specification

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2 Safety
2.1 Intended use
The pump is intended solely for the following uses:
 Transferring liquids and gases
 For operation in accordance with the operating parameters
specified in the technical data of the supporting documents
2.2 Reasonably foreseeable misuse
The pump must not:
 be used to transfer media whose compatibility with the
pump head, valves, diaphragm, and seals has not been
proven.
 be operated in an explosive atmosphere unless properly
rated for the HazLoc environment it will operate in
2.3 Responsibility of the user
The user is responsible for ensuring that the safety precautions in
these Installation Instructions are complied with. Applicable safety,
accident prevention, and environmental protection regulations must
be complied with.
2.4 Product-specific risks
Remaining risks that were determined in a risk assessment are
described in this section. Safety precautions and warnings in this
section and in the other sections of the Installation Instructions
must be observed to prevent dangerous situations.
DANGER
Danger of injuries and damage to property due to dangerous
substances
Poisoning and chemical burns or unintended reactions caused by
leaking dangerous substances
 Observe the safety data sheets of the transferred media.
 Before transferring a medium, check whether it can be
transferred safely in the specific application case.
 Ensure that the system is not subject to any risks of explo-
sion – not even under extreme operating conditions (tem-
perature, pressure) or in case of malfunctions.
 Ensure the pump is used only by suitably trained, skilled
employees.
 Clarify the chemical resistance of the head materials.
 Check that the pump and the system do not leak at the op-
erating temperature of the transferred medium.
 Check the pump for damage regularly.
 Operate the pump only when you are sure it has no tech-
nical malfunctions.
 Operate the pump in accordance with the technical data.
 Work on the pump or fluid circulation system only after they
have been decontaminated and/or a decontamination decla-
ration is present.

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DANGER
Danger of injuries and damage to property due to leaks at the
interfaces to the pump head
Poisoning and chemical burns or unintended reactions caused by
leaking dangerous substances
 Wear personal protective equipment.
 Connect the pump correctly.
 Operate the pump only when you are sure it has no tech-
nical malfunctions.
 Operate the pump in accordance with the technical data.
DANGER
Danger of injuries and damage to property due to uncon-
trolled flow while the pump is not in operation
Poisoning and chemical burns or unintended reactions caused by
leaking dangerous substances
 Construct the fluid system so that the operating pressure at
the pressure side of the pump is higher than at the suction
side.
 Install a shut-off valve in the fluid circulation system.

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3 Installation
WARNING
Danger from incorrect installation
Injuries or damage to property from leaking media
 After installation, check the system for leaks with a safe
medium.
 Observe the requirements for intended use.
 Take precautions in the design of the end device so that
leaking liquids cannot come into contact with live compo-
nents.
 Use only connections that are specified in the data sheet.
Do not use NPT threads or sealing tape, as cracks can
occur at the plastic connections.
The following requirements apply to all activities described in this
section:
3.1 Installation location
The installation location must:
 protect the pump against immersion
 keep aggressive and flammable liquids and vapors away
 allow hoses to be connected without tensile or bending stress
 take account of cooling the pump drive
 ensure that any leaks can be handled
 have appropriate precautions if flammable media are used
3.2 Mechanical mounting
 Protect the product against impacts, knocks, and strong vibra-
tions.
 Please refer to the product data sheet for dimensions, installa-
tion positions, and fluid connections.
3.3 Connecting the fluid system
Use suitable means to check the fluid connection for leaks.
For more information regarding dimensions, please refer to the
data sheet.

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3.4 Electrical connection
Observe the regulatory requirements for electrical installations:
 Overload protection and separating protective devices
 Contact protection and additional insulation
 Ground connections
 Protection against vibrations, tensile stress, and corrosion
WARNING
Danger of electric shock
If the pump is not installed correctly, there is a risk of electric
shock.
 The electrical installation of the pump must be carried out
by a trained specialist who has relevant credentials.
Fig. 1: 115V Connection

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Fig. 2: 208-230V Connection

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4 Initial start-up
The product must not be started up until it has been ensured that
the machine in which the product is to be installed meets the
requirements of the Machinery Directive 2006/42/EC, if applicable.
WARNING
Danger that the fluid system could rupture due to excess
pressure
The pump builds up pressure. With a closed system, the max.
permitted operating pressure can be exceeded. This may cause
injuries to personnel, or damage to the pump or the system.
 Prevent operation against a closed system.
 In the case of parts that are in contact with the fluid, use
only those that are designed to withstand at least the op-
erating pressure of the pump.
 If necessary, take suitable measures to limit the maximum
system pressure.
CAUTION
Danger of unexpected chemical reactions with water
Residues of water in the pump that come from testing in the
factory may react with the transferred medium.
 Before starting the pump for the first time, rinse it with a
medium that is uncritical as regards water.
CAUTION
Danger due to automatic start
Pumps with brushless DC motors have a thermal fuse that stops
the motor if it overheats. When the motor cools, it starts again
automatically.
 Ensure that no dangerous situations can result from this.
CAUTION
Danger from hot surfaces
The pump becomes hot during operation. Burns from hot surfaces
or injuries from uncontrolled movements are possible.
 Do not touch the pump while it is operating.
 Ensure a sufficient supply of cool air and keep a safe dis-
tance between the pump and neighboring components.
 Operate the pump in accordance with the technical data.
 If the temperature of the medium is above 50°C, take safety
precautions to prevent burns of fluid components.

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Before switching on the pump, verify the following:
 All hoses are attached properly.
 Pump is mechanically fixed in place.
 Specifications of the power supply correspond with the data on
the pump’s type plate.
 Pump outlet is not blocked.
 All cables are attached properly.
 Contact protection for electrical connections and moving parts
is installed.

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5 Maintenance
Ask your KNF representative about the availability of spare parts
for this product.
Use only genuine parts from KNF for servicing work.
5.1 Cleaning
WARNING
Danger due to dangerous substances in the pump
Depending on the medium transferred, chemical burns or poison-
ing is possible.
 If necessary, wear protective equipment, such as safety
gloves.
 Work on the pump or fluid circulation system only after
they have been decontaminated and/or a decontamination
declaration is present.
 Rinse the pump with a neutralizing liquid and then pump it
empty.
WARNING
Danger from medium spraying in the environment
Due to pressure in the pump and adjacent parts, medium can
spray out if hydraulic parts are manipulated or opened.
 Always depressurize the hydraulic parts of the system be-
fore carrying out any work.
 Disconnect the pump from the power supply and make
sure that it cannot be switched on again inadvertently.
Clean the pump.
Clean and dry the parts with a cloth. Do not use solvents for
cleaning, as they can harm plastic parts.
If compressed air is available, blow out the components.
 Pump must be switched off and mains plug removed from
the socket.
 The pump must be free of any hazardous substances.
 Hoses must be disconnected from the pump head.
 We recommend replacing the diaphragm when the head
parts are removed.
Prior requirements

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5.2 Preparing for dismantling
1. Rinse the pump with a suitable neutralizing liquid and make
sure that there are no dangerous substances left in the pump
(see warnings above).
2. Pump the unit empty.
3. Disconnect electrical connections.
4. Remove hoses from pump head.
Qty Tools
1 Torx screwdriver T20
Table 1
Tools

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Figure 3: Head parts
5.3 Dismantling the pump head
Loosen the four head screws (2) and remove the entire head.
Removing the valves and seals
Remove the valve plate (14) from the intermediate plate (15).
Remove the resonating diaphragm (10), diaphragm.27 (9),
support.27 (8), U-washer.27 (7) and compression spring.27 (6)
from the connecting plate (12).
Remove O-ring Ø39 (11) and, if fitted, O-ring Ø14.5 (5) from
the head plate.
Carefully grip the diaphragm (16) and remove by turning anti-
clockwise. Remove the U-washers (19) and make sure that no
U-washers (19) fall into the pump housing.
We recommend replacing the diaphragm (16).
Cleaning the parts
Clean the diaphragm (16), O-ring Ø14.5 (5), O-ring Ø39 (11),
diaphragm.27 (9), resonating diaphragm (10), valve plate (14),
intermediate plate (15) and connecting plate (12) with a cloth
and then blow off with compressed air.
Mounting the diaphragm
Place the same number of U-washers on the connecting rod
(19) as were there previously. Make sure that no U-washers
(19) fall into the pump housing.
Screw in the diaphragm (16).
By lightly pressing on the diaphragm push the ridge on the
underside of the diaphragm into the groove of the housing.
Mounting the valve plates
Insert the “dust free” valve plates (4) in the intermediate plate
(15), making sure they are in the correct position.
1 Head plate
2 Head screw
3 Hexagon nut M8x0.5
4 Setscrew M8x0.5
5 O-ring ø14.5
6 Compression spring
7 U-washer ø9
8 Support.27
9 Diaphragm.27
10 Resonating diaphragm
11 O-ring ø39
12 Connecting plate
13 Protective cap
14 Valve plate
15 Intermediate plate
16 Diaphragm
17 Pump housing
18 Washer ø8
19 U-washer ø8

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5.4 Assembling the pump head
Insert the resonating membrane (10) in the connecting plate
(12) and cover with the head plate (1) fitted with a new O-ring
(11) and O-ring (5).
The positions of the intermediate plate (15), the connecting
plate (12) and the head plate (1) are determined by the 3 loca-
tors (head screw elements).
Place the washers (18) for the head screws (2) on the through
holes of the head plate (1).
Push the four head screws (2) into the through holes on the
pump head.
Make sure that the flow direction of the pump head (see direc-
tional arrow on the head plate (1)) is the same as it was previ-
ously.
Place the pump head onto the pump housing and alternately
tighten the four head screws (2). The maximum tightening
torque is 1.5 Nm.
CAUTION
Caution, escaping liquid
After assembly, the pump may not be leak-tight due to incorrect
assembly, damaged or soiled seal faces, or other reasons.
 Run the pump for several minutes with a harmless medium
at maximum operating pressure.
 Check that the pump is leak-tight.

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6 Rectifying transfer problems
Symptom Cause Remedy
Pump does not
work; no movement
or sounds are de-
tectable.
No or incorrect control Check that voltage and signal form comply
with the specification.
Pump does not
work; drive be-
comes very hot.
Motor is controlled with an
incorrect signal.
Check that voltage and signal form comply
with the specification.
The pump does not
prime, or vacuum is
insufficient.
External valve is closed. Check external valve.
Counterpressure on pres-
sure side is too high.
Change the pressure conditions on the
pressure side.
Particles in the pump head Rinse the pump head.
Use a preventive preliminary filter.
Pump does not
transfer.
External valve is closed, or
filter is clogged or too small.
Check external valves and filter.
Connections or hoses are
blocked.
Check connections and hoses.
Remove blockage.
Flow rate is insuffi-
cient or unstable.
Incorrect control Check that voltage and signal form comply
with the specification.
Cross-section of hydraulic
hoses or connectors too
narrow or restricted
Disconnect the pump from the system and
determine performance data.
Remove restriction (e.g. valve), if neces-
sary.
If applicable, use larger-diameter hoses or
connectors.
Higher counterpressure in
the system than assumed
for the design
Contact KNF representative.
Particles in the pump head Rinse the pump head.
Use a preventive preliminary filter.
Replace pump head.
Pump has reached the end
of its service life.
Replace the pump.
Leak on pump head
Damage to the valve O-
rings
Replace the O-rings.
Diaphragm damaged Replace the diaphragm.
Resonating diaphragm
damaged
Replace resonating diaphragm.
If the malfunction cannot be rectified, contact your local KNF
representative (www.knf.com).

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7 Spare parts
Spare parts kit Order No.
Spare parts kit UNF1.300KTI Ex 069728
Spare parts kit UNF1.300TTI Ex 069728
8 Returning the pump
KNF will accept the pump for repair only under the condition that
the customer provides a certificate of the pumped medium and
cleaning of the pump. For this purpose, please follow the instruc-
tions on www.knf.com/repairs.
Please contact your KNF sales representative directly if you need
additional support for your return service.

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